What would I do with the wealth and inventiveness of Tony Stark? As Stark's talents incorporate mechanical engineering, computer science, computer engineering, embodied intelligence, haptics and others which can be interact in a novel fashion, I can only offer a "primer" listing of things I'd do.

I'd first work to develop affordable hybrid bone/joint replacements and assistance devices. The purpose would be to allow individuals that are older or have currently have physical disabilities to enjoy an enhanced quality of life. To reach this end, I would attempt to collaborate with the likes of Dean Kamen.

From there, I would work to develop more energy-efficient mass transportation systems. The Iron Man suit is a particularly elegant one-person transportation system, and some of its design principles can be applied to other "vehicles" in that arena.

With such wealth, I would focus on fostering the development of future Stark-like minds. I would attempt to mirror the efforts of the Gates Foundation, but would focus on a smaller cohort of students, begin working with them from a much younger age, and require them to shape their later research efforts in a manner where the frutis of their research could enhance the quality of life for others around the globe. Admittedly, I would also have a variety of "toys" which my wealth would afford... but a personal goal would be to ensure that enjoying such toys would not be the main outlet for my wealth (as I would open a number of discrete bank accounts for the younger members of my family).

Wiseguy- They're also trying to make up for the city-wide depression the Detroit Lions have caused in that city. haha

If i had Stark's wealth, I would have orgies w/ beautiful women everyday and buy cars, and all the best toys out there.

And if i had Stark's inventiveness, I would invent the same Iron Man suit in Black. But I wouldn't use it to fight crime. i would use it to fly around, blow stuff up and cause chaos a la GTA style. lol